[OLINGO-1563] Olingo Client does not resolution for next link is not correct

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Fix Version/s: (Java) V4 4.9.0
• Assignee: Unassigned
• Reporter: Prasanth Ganesh Rao
• Created: 05/Apr/22 05:26
• Updated: 06/Apr/22 05:26
• Resolved: 06/Apr/22 05:26

Description

We are currently facing an issue with OData V4 service created using SAP Gateway framework.

Service Root URL:

http://cc3-715-api.wdf.sap.corp:443/sap/opu/odata4/sap/api_measurementdocument/srvd_a2x/sap/measurementdocument/0001

The payload we receive from the service is as below,

{

    "@odata.context": "$metadata#MeasurementDocument(MeasurementDocument,MeasuringPoint)",

    "@odata.metadataEtag": "W/\"20220323004446\"",

    "value":

    [

       

{             "MeasurementDocument": "1",             "MeasuringPoint": "2"         }

,

       

{             "MeasurementDocument": "2",             "MeasuringPoint": "3"         }

,

        .
        .

        .

       

{             "MeasurementDocument": "3",             "MeasuringPoint": "2"         }

,

    ],

    "@odata.nextLink": "/sap/opu/odata4/sap/api_measurementdocument/srvd_a2x/sap/measurementdocument/0001/MeasurementDocument?$select=MeasurementDocument,MeasuringPoint&$skiptoken=100"

}

The server response is correct:

• The next-link is a host-relative URL with absolute path
• The context URL is a relative URL with relative path
• This means the context URL has to be resolved relative to the request URL – the service root URL never plays a role in resolving relative requests
• http://cc3-715-api.wdf.sap.corp:443/sap/opu/odata4/sap/api_measurementdocument/srvd_a2x/sap/measurementdocument/0001/MeasurementDocument

• This results in an absolute context URL of
• http://cc3-715-api.wdf.sap.corp:443/sap/opu/odata4/sap/api_measurementdocument/srvd_a2x/sap/measurementdocument/0001/$metadata

• Against which the next-link is resolved, ignoring everything except the scheme, host, and port:
• http://cc3-715-api.wdf.sap.corp:443/sap/opu/odata4/sap/api_measurementdocument/srvd_a2x/sap/measurementdocument/0001/MeasurementDocument?$select=MeasurementDocument,MeasuringPoint&$skiptoken=100

So this seems to be a problem with the Olingo library.